Veterinary Technician Practice Exam

In avian terms, what do you call an individual section that projects from the wings to form a feather?

1. Quill

2. Barb

3. Vane

4. Rib

The correct answer is: Barb

The term that describes an individual section that projects from the wings to form a feather is referred to as a barb. Barbs are the small, branching structures that emerge from the central shaft of a feather and are responsible for creating the vane, which gives the feather its flat, surface area. Barbs are critical for the overall structure and function of feathers, as they interlock to provide the necessary insulation, protection, and aerodynamic qualities needed for avian flight. Each feather consists of a central shaft, or quill, from which these barbs extend. This arrangement allows for flexibility and strength in the feather's structure, making a significant contribution to the bird's ability to fly effectively. In contrast, the quill refers specifically to the base of the feather that is embedded in the skin, while the vane is the flat part of the feather that comprises the barbs. The rib, in this context, is less relevant as it does not specifically refer to a component of feather structure. Overall, understanding barbs and their role helps in comprehending feather anatomy and its implications for bird physiology and behavior.